TY - JOUR AU - R. Anderson TI - Quasi-universal flows and semi-flows JO - Fundamenta Mathematicae PY - 1965 SP - 1 EP - 8 VL - 57 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-57-1-1-8/ DO - 10.4064/fm-57-1-1-8 LA - en ID - 10_4064_fm_57_1_1_8 ER -